A Google Chrome extension, Reword, has been released. It encourages people to think before they post nasty comments.

A Google Chrome extension, Reword, has been launched with the intention to get internet users to think before they post a nasty comment.

The intro on the site says, "Words can hurt. Words can be changed." And that's basically what the extension encourages. If you type an insult, a red line will appear through it, encouraging you to reconsider what you're about to post.

Reword was created by mental health organisation Headspace and advertising agency Leo Burnett Melbourne. While it's unlikely that bullies or those fond of engaging in comment wars will download the extension, it's hoped that parents and schools will embrace it.

You can try the tool online before you install it, and you can even add words that should be added to the extension's database.